Improvement in gang-plows



UNITED STATES PATENT OFFICE.

L. HOLLAWAY, OF'GILROY, CALIFORNIA.

IMPROVEM ENT IN GANG-PLOWS.-

Specification forming part of Letters Patent No. 416,903, dated March 21, 1865.

To all whom it may concern.-

Be it known that I, L. HOLLAWAY, of Gilroy, in the county of Santa Clara and State of California, have invented a new and Improved Gang-Plow; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, forming a part ot' this specification, in which- Figure l represents a longitudinal vertical section of my invention Fig. 2, a horizontal section ot' the same.

Similar letters of reference in both views indicate corresponding parts.

This invention relates to an improvement in that class of gang-plows in which the plows are attached to a separate frame which connects by a hinge with a truck, so that by drawing the truck through a field the plows are caused to act on the soil to any desired depth.

The nature of my invention and its peculiar advantages will be readily understood from the following description.

A represents a truck composed of an axle, G, which rests in two wheels, B, and from which a draft-pole, E', extends, as clearly shown in' the drawings. The wheels B B are either made of different size or they are connected to the axle G at di'erent heights from the ground, to compensate for the difference in the level of the cultivated and uncultivated soil. E is the drivers seat, which is supported by standards F and provided with a footboard, Gr, as clearly shown in Fig. l of the drawings.

H is a frame composed ot' two longitudinal beams, a, which are united by cross-bars b b', and to which the standards c of the plows d are rigidly attached. These plows are made in the shape of sin gle-shovel plows with'landsides, or in any other desirable shape and manner, and they, together with their standards, are steadied by braces e.

The frame H connects with the axle C of the truck by means of a link, I, which forms a double joint,being attached to said frame by a hinge, f, and to the truck by a hinge, g, and two rods, h1', connect the frame with a lever, J, which has its fulcrum on a pivot, j, in an upright, L, which rises from the axle C behind the drivers seat'.

The rod H is connected by a hinge-joint, I,

with the rear cross-bar, b, of the plow-frame H, and the rod t' connects with the rod which forms the fulcrum of the hingef, and the upper ends of said rods are secured to the lever J by pivots m a at different distances from its fulcrum, and these distances are adjustable by several holes made in said lever, as clearly shown in Fig. 2 of the drawings. The front end ofthe lever J connects by au arm, o, with an arnnp, extending from a rock-shaft, q,whicl1 has its bearings in suitable boxes below the drivers seat, and to which abend-lever, r, is firmly secured. This 4hand-lever extends upon the side ot' the drivers seat, so that it can be conveniently operated by the driver, and it is adjustable in a serrated or notched segment, s. By throwing the hand-lever r in the direction of the arrow marked near it in Fig. l the plow-frame H is depressed, and by the peculiar relation ot' the link-joint I and rods 7L t' toward each other and toward the frame H the plow-frame, in ,being raised, remains parallel, or nearly so, to its original position. Furthermore, by shifting the position of the pivots m a, which form the connection ot' the rods h i with the lever J, either end ot' the plowframe may be raised or depressed at pleasure and the plows can be brought to any desired inclination, according to the nature of the soil and to the depth to which itis to be penetrated. By this arrangement the driver has perfect control over the plows, he can adjust them as he thinks best, and during the operation he can instantaneously raise the plows outot' the ground or adjust them higher or lower, as he deems necessary by the nature of the soil or by obstuctious which may occur in .the same.

The entire plow is very simple in its construction, it is easily operated, and all its parts are so constructed that they are not liable to get out of order.

What I claim as new, and desire to secure by Letters Patent, is

The link-joint I, in combination with the adjustable rods IL t, lever J, plow-frame H, and truck A, constructed and operating in the m'anner and for the purpose substantially as herein shown and described.

L. HOLLAWAY.

Witnesses:

I. B. TULLY,

JOHN M. KEITH. 

